This DOP-C02 practice question tests your understanding of security and compliance. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A company wants to encrypt data at rest in Amazon S3 using server-side encryption. Which AWS service can automatically manage the encryption keys with minimal configuration?
SSE-C
Why wrong: SSE-C requires the customer to provide and manage their own encryption keys.
SSE-KMS
Why wrong: SSE-KMS requires creating and managing a KMS key.
SSE-S3
SSE-S3 automatically manages encryption keys with no additional configuration.
Client-side encryption
Why wrong: Client-side encryption is performed before data reaches S3 and is not server-side.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
SSE-S3
SSE-S3 (Server-Side Encryption with S3-Managed Keys) is the correct answer because it requires minimal configuration: you simply enable it on the bucket or object, and AWS fully manages the encryption keys, including rotation and protection, without any additional setup or key management overhead.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
SSE-C
Why it's wrong here
SSE-C requires the customer to provide and manage their own encryption keys.
SSE-KMS
Why it's wrong here
SSE-KMS requires creating and managing a KMS key.
SSE-S3
Why this is correct
SSE-S3 automatically manages encryption keys with no additional configuration.
Related concept
Read the scenario before looking for a memorised answer.
Client-side encryption
Why it's wrong here
Client-side encryption is performed before data reaches S3 and is not server-side.
Common exam traps
The trap here is that candidates often confuse SSE-S3 with SSE-KMS, assuming that any key management service (KMS) is required for automated encryption, but SSE-S3 provides fully automated key management with even less configuration than SSE-KMS.
Detailed technical explanation
SSE-S3 uses AES-256 encryption with keys managed by AWS, which are automatically rotated and stored in a separate, hardened system. Under the hood, each object is encrypted with a unique key, which is then encrypted with a master key that is regularly rotated, providing strong security without any customer involvement. A real-world scenario is a company that needs to meet compliance requirements for encryption at rest but lacks the operational overhead to manage keys, making SSE-S3 the ideal choice.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
What to study next
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FAQ
Security and Compliance — This question tests Security and Compliance — Read the scenario before looking for a memorised answer..
The correct answer is: SSE-S3 — SSE-S3 (Server-Side Encryption with S3-Managed Keys) is the correct answer because it requires minimal configuration: you simply enable it on the bucket or object, and AWS fully manages the encryption keys, including rotation and protection, without any additional setup or key management overhead.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 24, 2026
This DOP-C02 practice question is part of Courseiva's free Amazon Web Services certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the DOP-C02 exam.
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